Improvement in axle-gauges



x vention or experiment.

timidi Saitta `incensi) K, vnsrAn orl SANTA CRUZ, CALIFORNIA.

Letters Patent No. i13,598, dated 11, 1871.

` IMPRovEMgNT I NV AvxLsfeAuces,

The `Schedule referred to in these Lettere Patent and malszlngpaxt ofthe same.

.To allwhom Iit may concern.-

Be it known that I, RICHARD KQ VESTL, of the .city and county of SantaCruz, -State of California,

have invented an Improved Adjustable Grange for Setting Axles; and I doher'eby declare the following description and accompanying drawing ,aresuiicie'nt to enable any person skilled in the artnr science to which itmost nearly appertains to make end use my said invention or improvementswithout further; in-

Ihe object of'- my invention is to providea univer-i sal gauge forsetting theaxles of common roadvehicles, by which I am enab1ed,'iilst,to` set the axle to suit the taper ofthe spindle; and secondly, to suitthe disk of thewheel; andlastly, to suit the gather of thewheels, or theslight tendency tordu together, which figs given eaclrpair of wheels 'onthe same axle fo'll the purpose ofmaking them run easily. Refel:ring totheaeoompf'myingdrawing'ora more complete explanation of my invention- YA is a bar of metal or wood, made longer than the longest diameter of awheel ordinarily used, and'. also ,long enough to include anyordinarylength of' axle.

This bar' has arms, bland c, extending at iight angles to it from oneend, while the other end carries an adjustable slidingar'm or bar d.Nearthe point Where the arms b and c meet the 'bar A, two bars ovplates, e andf, are pivoted to one side of the bar A, the bar extendingsome distance along'4 the bar A, and held'at any desiiedpoiut or slightangle with the bar A by a set-screw, g. l '.'This bai` e also carries anadjustable arm, h,`the' ptierpose of which will be more fully describedherea r. The outer ends of the plates e and f are adjust-ed uponeach4other from side to side by means of a setscrew, z', moying inatransverse slot in onetot' the plates, so that'they can" be clampedatany point upon .each other.' Upon theopposite1 side of the barA, ti'omthetwo. arms e and f, and held by vthe'same piu, is a third am, m,whichA is also movable from vside to side l about4 its pointofattachmeut, anr1 is heldfby ajsetsex-ema, 'The point ofran L-shapedba'r, o, is pinned tothe extremity of the -arm b, `while the .other endo fthe angle has a piu 'passing through it so as to slideina sint, p, onthe arm or-bar f.

" A similar-shapedbar, q,`is pinned tothe arm'c, andi I has its oppositeend made tomove by means of a pin in a slot,"r ,in the plate or-arm m.

The operation will vbe as follows:l

Thearms e, -f, andm being -set parallel and the arm f is moved over thearm e, about their with the v bar A and with each other, the set-screwi, is loosened common center, till. the scale s shows an angle equa, tohalf lthe taper of the spindle', the' reading being' l taken at a'pointopposite thetraiisverse scale t which vshows the length of' thespindle'. Y

These two plates are then secured together by their setfscrews'i, andthe screw 1t is loosened.v The arm m is then moved about itspoint ofattachment till its angle with thescale'u on the .bar 4A shows one-halfthe taper of thespindle less the gat-hen? (before described,) whichlitiis determined to give the axle. The

V-strew n is then 'made fast, and the'arms o and q will then stand withtheir sides at an angle with lines which are parallel with the bar-A.

The bar A' is vthen turned over, as in g.- 2, and the felly of the wheelis made to rest in the spacc'V, and againstthe side of the bar A, nearthel adjustable arm d, so that the edge ot' theV bar A extends acrossthe .disk'ot' the wheel just above the hub;

The bar or arm h is then set at a point ou the arm e, opposite thecenter spoke, above the hub o'f the V wheel; and-tile screw, g beingloosened, the ann e is '.moved toward the wheeltill the end of' thegauge h v touches the center spoke( This movement will carry theouterlend of' the arm ein the opposite direction,

taking with 'it the arms f and the guide o; The screw g'being set again,(when the gauge h touchesY the spoke, as described,) the guide orfarin owill bein the, exactposition to set .the-spindle in a vertical plane vwhile the guide 'q willbe adj usted to 'set it in the horizontal'plane.`

The first adjustment is made by first'moving the .bar d till one collarof the axle .rests against the lug fw and the other collarrestsiu thenotch 'az-at the end ofthe guide o. 1 -The axle is placed with the lowerside ot the spiudleagainstthe guide o, 4to which it must be made to'confor-m by bending the axle. This being accomplished the axle'will beset in that direction.- 'It must then be brought against the guideq,'the

side 'of the spindle touching and the collars'resting in the notch Z onthe lug W'. Y 4 The springs Z' are .made to stand at an -angle above andbelow the' guide q, but their edges are in-the same plane, so that theaxle can be exactly fitted notwlthstanding its set inptheiothei"direction.

This iinisbes one' end, which is then allowed to cool, and the other endis-heated and set in the same .Y By this 'device I- am enabled to setaxles rapidly and4 -accurately,1 withoutany labor in ldrawing and layingout angles.

Having thus described my invention,

vfhat I claim, and desire to secure biuation with the adjustablevibrating gauge-arms e.

amf; substantially as amd for the pulpos@ herein degw'ribed.

2. The adjustable gaugearm m and the guide q, in

ombiuamion with the bar A, susic-antially as and for f In witness thatthe al'love-descrined invention is claimed by me' ,ll have hereunto. setmyrhand and seal.

RIO K. VESTAL. [1.. 8.]

Witnesses:

GEo. H. STRONG, WM. H. Hummm.

